Jessica Lowndes and GLEE's Grant Gustin Star in Lifetime Movie A MOTHER'S NIGHTMARE Tonight, 9/29

Jessica Lowndes ("90210"), Grant Gustin ("Glee") and Annabeth Gish ("Pretty Little Liars") Star in the World Premiere of "A Mother's Nightmare" tonight, September 29th.

A Mother's Nightmare stars Lowndes (90210) as Vanessa, a 17-year-old girl, who is transferred to a new school where she meets Chris (Gustin, Glee), a 16-year-old with a recently broken heart. Vanessa moves fast to claim Chris for her own, monopolizing his time and distancing him from his friends and family. His mother, Maddie (Gish, Pretty Little Liars), feels unsettled by their sudden relationship and when she discovers a dark secret of Vanessa's she uses all her resources to convince Chris to end it. (The more Maddie tries to protect Chris, the more Vanessa's hold on him is threatened) Angered and vengeful, Vanessa accuses Chris of a heinous act that turns the school against him and sparks an online attack. As things get violent, Vanessa plans her next move and Maddie must find out Vanessa's game before she loses her son forever.

A Mother's Nightmare will premiere on Lifetime tonight, September 29th at 8pm ET/PT.